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- /*
- File: FixMath.h
-
- Contains: Fixed Math Interfaces.
-
- Version: Technology: System 7.5
- Package: Universal Interfaces 2.0 in “MPW Latest” on ETO #17
-
- Copyright: © 1984-1995 by Apple Computer, Inc.
- All rights reserved.
-
- Bugs?: If you find a problem with this file, use the Apple Bug Reporter
- stack. Include the file and version information (from above)
- in the problem description and send to:
- Internet: apple.bugs@applelink.apple.com
- AppleLink: APPLE.BUGS
-
- */
-
- #ifndef __FIXMATH__
- #define __FIXMATH__
-
-
- #ifndef __TYPES__
- #include <Types.h>
- #endif
- /* #include <ConditionalMacros.h> */
-
- #ifdef __cplusplus
- extern "C" {
- #endif
-
- #if PRAGMA_ALIGN_SUPPORTED
- #pragma options align=mac68k
- #endif
-
- #if PRAGMA_IMPORT_SUPPORTED
- #pragma import on
- #endif
-
-
- enum {
- fixed1 = 0x00010000L,
- fract1 = 0x40000000L,
- positiveInfinity = 0x7FFFFFFFL,
- negativeInfinity = 0x80000000L
- };
-
- extern pascal Fract Fix2Frac(Fixed x)
- ONEWORDINLINE(0xA841);
- extern pascal long Fix2Long(Fixed x)
- ONEWORDINLINE(0xA840);
- extern pascal Fixed Long2Fix(long x)
- ONEWORDINLINE(0xA83F);
- extern pascal Fixed Frac2Fix(Fract x)
- ONEWORDINLINE(0xA842);
- extern pascal Fract FracMul(Fract x, Fract y)
- ONEWORDINLINE(0xA84A);
- extern pascal Fixed FixDiv(Fixed x, Fixed y)
- ONEWORDINLINE(0xA84D);
- extern pascal Fract FracDiv(Fract x, Fract y)
- ONEWORDINLINE(0xA84B);
- extern pascal Fract FracSqrt(Fract x)
- ONEWORDINLINE(0xA849);
- extern pascal Fract FracSin(Fixed x)
- ONEWORDINLINE(0xA848);
- extern pascal Fract FracCos(Fixed x)
- ONEWORDINLINE(0xA847);
- extern pascal Fixed FixATan2(long x, long y)
- ONEWORDINLINE(0xA818);
- #if GENERATINGPOWERPC
- extern WidePtr WideAdd(wide *target, const wide *source);
- extern short WideCompare(const wide *target, const wide *source);
- extern WidePtr WideNegate(wide *target);
- extern WidePtr WideShift(wide *target, long shift);
- extern unsigned long WideSquareRoot(const wide *source);
- extern WidePtr WideSubtract(wide *target, const wide *source);
- extern WidePtr WideMultiply(long multiplicand, long multiplier, wide *target);
- /* returns the quotient */
- extern long WideDivide(const wide *dividend, long divisor, long *remainder);
- /* quotient replaces dividend */
- extern WidePtr WideWideDivide(wide *dividend, long divisor, long *remainder);
- extern WidePtr WideBitShift(wide *src, long shift);
- #endif
- #if GENERATING68K && !GENERATING68881
- extern pascal double_t Frac2X(Fract x)
- ONEWORDINLINE(0xA845);
- extern pascal double_t Fix2X(Fixed x)
- ONEWORDINLINE(0xA843);
- extern pascal Fixed X2Fix(double_t x)
- ONEWORDINLINE(0xA844);
- extern pascal Fract X2Frac(double_t x)
- ONEWORDINLINE(0xA846);
- #else
- extern pascal double_t Frac2X(Fract x);
- extern pascal double_t Fix2X(Fixed x);
- extern pascal Fixed X2Fix(double_t x);
- extern pascal Fract X2Frac(double_t x);
- #endif
-
- #if PRAGMA_IMPORT_SUPPORTED
- #pragma import off
- #endif
-
- #if PRAGMA_ALIGN_SUPPORTED
- #pragma options align=reset
- #endif
-
- #ifdef __cplusplus
- }
- #endif
-
- #endif /* __FIXMATH__ */
-